Idemfactor
n. [数]幂等矩阵, 等幂矩阵
🗣️ 情景例句
No, it's an original. My father's friend is a calligrapher, and I had him make it for you.
没错，这可是真迹。我父亲的朋友是书法家，专门帮你写的。
Hard words break no bones, fine words butter no parsnips.
粗话无害，甘言无益。
Here was a seven-year-old girl who at the age of 19 months had become deaf and blind.
一个7岁的女孩，出生19个月后就得了聋盲症。